All spell casters gain their abilities through a form of demon possession. So in order to gain magical abilites, PCs must track down and trap demons. Of course there are some pretty powerful demons, if the demon is stronger than the PC, the PC could find themselves subjugated to the Demon's will.
Whale's Jaw is a crumbling stone monument that was once in the form of a skeletal whale. Many years have past since the construction of Whale's Jaw and these days all that can be seen in the "jaw" jutting from the earth as if it is yearning for a final glimpse of sunlight before taking a plunge into the earth.
All around The Jaw are remains of oddly formed and weathered structures. They seem to have been smoothed and tumbled by severe rain or ocean currents. Most say it is just another Wonder of The World, a mystery we will never know the answer to, but some know differently... I know differently...